To guard against IT room dangers, be aware of IT room characteristics before entering the room. We addressed two in our previous issue. Let’s take a look at three more.
Battery backup. It remains a shock hazard even if the service is shut down, so Art. 645 requires at least one battery disconnecting means inside the room and a wall-mounted one immediately outside the room.
Rampant grounding and bonding errors. Unlike other characteristics, this one is u